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Do you know the production process of soy protein isolate?

Do you know the production process of soy protein isolate?

  Soy protein isolate is an additive commonly used in the food industry and has a high protein content. This kind of additive not only allows the food to maintain a good taste, but also increases the nutritional value of the food to a certain extent, so it is very popular. So, how is soy protein isolate processed?
  The production process of soy protein isolate mainly has the following steps: soybean meal→alkali solution→acid precipitation→neutralization→heating reforming→drying→soy protein isolate.
  The low-temperature defatted soybean meal is extracted with a dilute alkali solution, and most of the protein in the soybean meal is dissolved in the dilute alkali solution, and then the insoluble matter (mainly polysaccharide and some residual protein) in the soybean meal is removed by centrifugation, and then the leachate is extracted with acid. The pH value is adjusted to about 4.5, the protein is in an isoelectric point state and agglomerated and precipitated, and the protein precipitate is separated, and then the soybean protein is separated by washing, neutralization and drying.
  The alkali extraction acid precipitation process can effectively purify the protein content, and the product quality is good and the color is shallow. The process is simple and easy to operate, and the production process is easy. It is a mature soy protein isolate production process.